Hamilton Sundstrand Corporation

United States of America

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IPC Class
B64D 13/06 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned 389
B64D 41/00 - Power installations for auxiliary purposes 211
B64D 13/08 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled 189
B33Y 10/00 - Processes of additive manufacturing 120
B33Y 80/00 - Products made by additive manufacturing 116
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09 - Scientific and electric apparatus and instruments 14
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1.

SYSTEMS AND METHODS FOR ARC DAMAGE DETECTION

      
Application Number 18384909
Status Pending
Filing Date 2023-10-30
First Publication Date 2025-05-01
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Joshi, Ashutosh
  • Pal, Debabrata

Abstract

A method of detecting electrical arc damage includes receiving input indicative of electrical power as a function of time in an electrical arc. The method includes using the input to model an amount of damage caused by the electrical arc, and comparing the amount of damage to a predetermined threshold. The method includes flagging a warning in response to the amount of damage exceeding a predetermined threshold. The method can include breaking a circuit to stop the electrical arc. Flagging the warning can include signaling to an operator to inspect a unit potentially damaged by the electrical arc. The method can include inspecting the unit potentially damaged by the electrical arc.

IPC Classes  ?

  • G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model

2.

SINGLE STAGE SERVO VALVE ASSEMBLY

      
Application Number 18921638
Status Pending
Filing Date 2024-10-21
First Publication Date 2025-05-01
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Jaskiewicz, Zbigniew
  • Mastalerz, Kamil

Abstract

A single stage servo valve assembly includes a drive assembly and a valve body assembly. The valve body assembly defines a valve body extending along a valve body axis (X) between a first valve body end and a second valve body end, a supply port, a control port and a return port formed through the valve body each defining a respective fluid flow channel, having a fluid flow axis, providing fluid communication between an interior of the valve body and an exterior of the valve body. The drive assembly operates to control the flow of fluid between the supply port, the control port and the return port, via the interior of the valve body, in response to an electric command signal; wherein a first nozzle is located in the valve body between the supply port and the control port and a second nozzle is located between the ports.

IPC Classes  ?

  • F16K 31/124 - Operating meansReleasing devices actuated by fluid the fluid acting on a piston servo actuated

3.

FLEX SPLINE FOR STRAIN WAVE DRIVE

      
Document Number 03229440
Status Pending
Filing Date 2024-02-16
Open to Public Date 2025-04-24
Owner HAMILTON SUNDSTRAND CORPORATION (USA)
Inventor
  • Turek, Lukasz
  • Darby, Jonathan A.
  • Chmielewski, Pawel
  • Cis, Marcin

Abstract

A flex spline for a strain wave drive, the flex spline comprising: a flexible tubular body (110) having a first open end (221) and a second open end (222); a first set of radially outwardly extending teeth around its outer periphery at the first open end; a second set of radially outwardly extending teeth around its outer periphery at the second open end; and a third set of radially inwardly outwardly teeth located axially between the first and the second sets of teeth; and wherein the body further comprises one or more sections of changed geometry located between the first and second sets of teeth and/or the second and third sets of teeth, the sections of changed geometry being provided with a geometric feature in the flex spline body that is not present in the remainder of the flex spline body.

IPC Classes  ?

  • B64C 13/34 - Transmitting means without power amplification or where power amplification is irrelevant mechanical using toothed gearing
  • F16C 19/50 - Other types of ball or roller bearings
  • F16H 1/00 - Toothed gearings for conveying rotary motion
  • F16H 49/00 - Other gearing

4.

TUNABLE INDUCTOR AND METHODS TO REALIZE TUNABLE INDUCTOR

      
Application Number 18490574
Status Pending
Filing Date 2023-10-19
First Publication Date 2025-04-24
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Liu, Bo
  • Channegowda, Parikshith

Abstract

A tunable inductor is provided including a core having a closed shape and including first through third legs. A first winding wound around the first leg is coupled to a first controller configured to provide DC power to the first winding. The first winding is configured to generate a DC flux in a DC flux path in response to the DC power, the DC flux path passing through a first magnetoelectric material coupled to the core. A second winding wound around the second leg is coupled to the first controller and is configured to generate the DC flux in response to the DC power. A third leg between the first leg and the second leg is coupled to an AC power source configured to provide AC power to the third winding. The third winding is configured to generate AC flux in an AC flux path based on the AC power.

IPC Classes  ?

  • H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
  • H01F 3/14 - ConstrictionsGaps, e.g. air-gaps
  • H01F 17/04 - Fixed inductances of the signal type with magnetic core

5.

AIRCRAFT ENGINE START USING MULTIPLE COMMON MOTOR CONTROLLERS

      
Application Number 18491383
Status Pending
Filing Date 2023-10-20
First Publication Date 2025-04-24
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Seagren, Robert L.
  • Patel, Dhaval S.

Abstract

An engine start system for an aircraft includes a first variable frequency start generator (VFSG) including a first exciter and a first stator, a second VFSG including a second exciter and a second stator, a first motor controller and a second motor controller, and a switching system. The switching system is configured to operatively connect the first motor controller to the first stator or the second exciter and operatively connect the second motor controller to the first exciter or the second stator. In a first mode of operation, the first motor controller is operatively connected to the second exciter, the second motor controller is operatively connected to the second stator, the first VFSG generates power, the first motor controller provides a first controlled voltage and frequency to the second exciter, and the second motor controller provides a second controlled voltage and frequency to the second stator.

IPC Classes  ?

  • F02C 7/26 - StartingIgnition
  • B64D 33/00 - Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
  • H02P 5/74 - Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more AC dynamo-electric motors

6.

HEAT EXCHANGER AND HEADER CONSTRUCTION

      
Application Number 18491909
Status Pending
Filing Date 2023-10-23
First Publication Date 2025-04-24
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Army, Donald E.

Abstract

A heat exchanger includes a heat exchanger body having a plurality of heat exchanger tubes, an inlet manifold connected to the heat exchanger body and configured to distribute a flow of fluid from a fluid inlet of the inlet manifold to the plurality of heat exchanger tubes, and an outlet manifold connected to the heat exchanger body and configured to collect the flow of fluid from the plurality of heat exchanger tubes and direct the flow of fluid through a fluid outlet. The heat exchanger body is formed via one or more additive manufacturing processes, and at least one of the inlet manifold and the outlet manifold is formed via one or more subtractive manufacturing processes.

IPC Classes  ?

  • F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
  • B33Y 80/00 - Products made by additive manufacturing
  • F28F 9/02 - Header boxesEnd plates

7.

HEAT EXCHANGER WITH INTERNAL CROSS FLOW FINS

      
Application Number 18491913
Status Pending
Filing Date 2023-10-23
First Publication Date 2025-04-24
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Army, Donald E.

Abstract

A heat exchanger includes a plurality of heat exchanger plates stacked along a stacking axis defining a plurality of first pathways through which a first fluid is directed, and a plurality of fins located between adjacent first pathways of the plurality of first pathways. The plurality of fins at least partially define a plurality of second pathways through which a second fluid is directed. The heat exchanger plates are formed from a sheet material, and the plurality of fins are formed from one or more additive manufacturing processes.

IPC Classes  ?

  • F28F 3/04 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element

8.

LLC VOLTAGE CONVERTER

      
Application Number 18813919
Status Pending
Filing Date 2024-08-23
First Publication Date 2025-04-24
Owner Hamilton Sundstrand Corporation (USA)
Inventor Mclean, Andrew

Abstract

A LLC voltage converter for converting a DC input voltage to a DC output voltage includes a transformer, a controller and a current sensor. The current sensor provides a measurement of the current through a first winding of a transformer to the controller. The controller determines a parameter relating to an output current of the LLC voltage converter using the current measurement. The controller also receives a parameter relating to an output current of at least one other LLC voltage converter, configured in parallel with the LLC voltage converter. The controller is arranged to control the LLC voltage converter based on both the parameter relating to the output current of the LLC voltage converter and the parameter relating to the output current of the other LLC voltage converter.

IPC Classes  ?

  • H02M 3/00 - Conversion of DC power input into DC power output
  • H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

9.

PARALLEL ELECTROHYDRAULIC SERVO VALVE CONTROLLED ACTUATOR WITH FAILURE ACCOMMODATION

      
Application Number 18381737
Status Pending
Filing Date 2023-10-19
First Publication Date 2025-04-24
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Ramprashad, Sachin
  • Coretto, August M.
  • Perrelli, Frank

Abstract

A system includes a first electrohydraulic servo valve (EHSV) configured to be in fluid communication with a pressure supply and with a pressure return. The first EHSV includes a first actuator extend line and a first actuator retract line. A second EHSV is configured to be in fluid communication with the pressure supply and with the pressure return. The second EHSV includes a second actuator extend line and a second actuator retract line. An actuator includes an extend chamber in fluid communication with both of the first and second extend actuator lines, and a retract chamber in fluid communication with both of the first and second retract actuator lines for extending an end effector when the first and second EHSVs pressurize the extend chamber, and for retracting the end effector when the first and second EHSVs pressurize the retract chamber.

IPC Classes  ?

  • F15B 18/00 - Parallel arrangements of independent servomotor systems
  • F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems

10.

Single variable displacement fuel systems with fuel oil coolers

      
Application Number 18390229
Grant Number 12281616
Status In Force
Filing Date 2023-12-20
First Publication Date 2025-04-22
Grant Date 2025-04-22
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Susca, Ryan Prescott
  • Ramprashad, Sachin
  • Shook, Ryan

Abstract

A system includes an actuation pump sub-system (APS) with an inlet configured to feed fuel from a fuel source into the APS, a first outlet configured for connecting the APS in fluid communication with an actuation system to supply fuel flow for actuation, a second outlet feeding into a supply line, and a third outlet feeding into the supply line. A fuel oil cooler (FOC) is included in a first branch of the supply line. The FOC is in fluid communication to receive flow from the second outlet. The APS includes a bypass valve (BPV) in a second branch of the supply line, in parallel with the FOC and in fluid communication to allow flow from the third outlet into the supply line bypassing the FOC. A main pump and control sub-system has a main inlet connected in fluid communication with the supply line downstream of the BPV and FOC.

IPC Classes  ?

  • F02C 7/236 - Fuel delivery systems comprising two or more pumps
  • F02C 7/232 - Fuel valvesDraining valves or systems
  • F02C 9/30 - Control of fuel supply characterised by variable fuel pump output

11.

Acoustic dampers for life support systems

      
Application Number 18434951
Grant Number 12281659
Status In Force
Filing Date 2024-02-07
First Publication Date 2025-04-22
Grant Date 2025-04-22
Owner HAMILTON SUNDSTRAND CORPORATION (USA)
Inventor
  • Winkler, Julian
  • Homma, Kenji
  • Reimann, Craig A.
  • Mendoza, Jeffrey M.
  • Quinn, Gregory
  • Ju, Hengyi

Abstract

Life support systems include a pressure garment, a helmet, and a life support system enclosure that define an enclosed environment. The life support system includes one or more life support components to generate breathable gas within the enclosed environment. The gas is directed along a closed-loop flow path through the system. The life support components includes a fan for driving a flow of the gas through the closed-loop flow path and an acoustic damper arranged along the flow path and to reduce noise generated by the fan. The acoustic damper includes a housing defining an annular cavity arranged about a portion of the flow path, with the housing having a solid exterior surface and an inner diameter surface with openings to fluidly connect the flow path with the annular cavity and at least one acoustic damping element arranged within the annular cavity.

IPC Classes  ?

  • F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the likeBalancing
  • A62B 7/10 - Respiratory apparatus with filter elements
  • A62B 7/14 - Respiratory apparatus for high-altitude aircraft
  • A62B 18/04 - Gas helmets
  • B64D 10/00 - Flight suits
  • B64G 6/00 - Space suits
  • F02C 7/045 - Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression

12.

SYSTEMS AND METHODS FOR DETERMINING VALVE FLUTTER

      
Application Number 18380534
Status Pending
Filing Date 2023-10-16
First Publication Date 2025-04-17
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Begley, Patrick
  • Kelly, Myles R.
  • Poisson, Ronald D.
  • Mackinnon, Robert

Abstract

In accordance with at least one aspect of this disclosure, a system includes a first wire configured to electrically connect a valve stop to a voltage source, a second wire configured to connect a valve pin to a negative terminal of the voltage source, such that the valve stop, and a valve flap operatively connected to the valve pin are configured to create a closed valve circuit when the valve flap is in a fully open position with the valve flap contacting the valve stop, and an open valve circuit when the valve flap is not in the fully open position. A meter is operatively connected to measure an electrical characteristic of the valve circuit to determine when the valve flap is in the fully open position based on an open/closed status of the valve circuit.

IPC Classes  ?

  • F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
  • F16K 15/03 - Check valves with guided rigid valve members with a hinged closure member

13.

COLD START INDUCTION HEATING AND BRAKING ARRANGEMENT

      
Application Number 18627648
Status Pending
Filing Date 2024-04-05
First Publication Date 2025-04-17
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Sengodan, Rajkumar
  • Durairaj, Thilak Raj

Abstract

A drive system for an aircraft. The drive system includes a controller, a motor coupled to an H-bridge network, a DC link that can be coupled to the motor; and an electrical braking system configured to be electrically coupled to the motor. The electrical braking system includes: a sense circuit configured to sense a condition of the DC link; a brake resistor coupled to the DC link; a temperature sensor; a drive circuit coupled to the sense circuit; and a coil for breaking in an inductive braking mode or generating heat in a cold start mode, wherein the coil is located in or near a line replaceable unit chassis that includes printed circuit boards.

IPC Classes  ?

  • B60L 7/18 - Controlling the braking effect
  • B60L 7/12 - Dynamic electric regenerative braking for vehicles propelled by DC motors

14.

ELECTRICAL CONVERTER SYSTEMS

      
Application Number 18378486
Status Pending
Filing Date 2023-10-10
First Publication Date 2025-04-10
Owner HAMILTON SUNDSTRAND CORPORATION (USA)
Inventor
  • Liu, Bo
  • Channegowda, Parikshith
  • Dwari, Suman

Abstract

An AC/DC converter can include an alternating current (AC) source configured to output AC, one or more AC lines electrically connected to the AC source to conduct the AC, a conversion circuit operatively electrically connected to the one or more AC lines to receive AC, one or more filter inductors electrically connected to at least one of the one or more AC lines, and an inductance control system operatively connected to the one or more filter inductors to modify the inductance of the one or more filter inductors. A DC/DC converter can include a direct current (DC) source configured to output DC, one or more DC lines electrically connected to the DC source to conduct the DC, a non-resonant DC/DC conversion circuit operatively electrically connected to the one or more DC lines to receive DC, one or more filter inductors electrically connected to at least one of the one or more DC lines, and an inductance control system operatively connected to the one or more filter inductors to modify the inductance of the one or more filter inductors to maintain a constant switching frequency while maintaining soft switching of the one or more switches independent of variations in the DC and/or a load connected to the non-resonant DC/DC conversion circuit. The non-resonant DC/DC conversion circuit can be configured for DC/DC conversion. The non-resonant DC/DC conversion circuit can include one or more switches configured to be controlled for DC/DC conversion.

IPC Classes  ?

  • H02M 7/79 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
  • H02M 1/12 - Arrangements for reducing harmonics from AC input or output

15.

CHECK VALVE FOR RAT RE-STOW PUMP

      
Application Number 18906902
Status Pending
Filing Date 2024-10-04
First Publication Date 2025-04-10
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kielczykowski, Przemyslaw
  • Bereszynski, Piotr Michal
  • Slodczyk, Damian

Abstract

A check valve assembly includes a valve body having a first end and a second end, the valve body extending along an axis (X) from the first end to the second end; a check valve outlet is located between the first and the second end; an actuator port provided in the check valve body at a location axially between the outlet and the second end, for fluid connection, in use, to a pump actuator. The valve body further includes a fluid inlet via which the check valve is, in use, connected to a fluid tank, the fluid inlet being provided in the valve body towards the second end, axially between the actuator port and the second end.

IPC Classes  ?

  • F04B 53/10 - ValvesArrangement of valves
  • B64D 41/00 - Power installations for auxiliary purposes
  • F04B 23/02 - Pumping installations or systems having reservoirs
  • F16K 15/04 - Check valves with guided rigid valve members shaped as balls

16.

METHOD FOR COMPLEX HARDWARE DEVELOPMENT ERROR MITIGATION VIA INDEPENDENT ANALOG REPRESENTATION OF DIGITAL DATA

      
Application Number 18378287
Status Pending
Filing Date 2023-10-10
First Publication Date 2025-04-10
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Joyce, Thomas P.
  • Fox, Brennan
  • Gillette, Christopher
  • Kleindienst, John A.
  • Lubow, Alan E.

Abstract

A system an analog to digital converter (ADC) operatively connected to receive an analog input signal from an input line and to output a digital input signal. A processor is operatively connected to receive the digital input signal from the ADC and to output a digital control signal for controlling a physical system based on the digital input signal. A digital to analog converter (DAC) is operatively connected to receive a copy of the digital input signal put out from the processor, and to output an analog output signal indicative of the copy of the digital input signal put out from the processor. Comparison logic is operatively connected to receive the analog input signal from the input line, to receive the analog output signal from the DAC, and to output an error signal in response to a mismatch between the analog input signal and the analog output signal.

IPC Classes  ?

  • H03M 1/06 - Continuously compensating for, or preventing, undesired influence of physical parameters

17.

STANDOFF FOR CIRCUIT CARD ASSEMBLIES

      
Application Number 18539752
Status Pending
Filing Date 2023-12-14
First Publication Date 2025-04-10
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kumarapuram Anantharaman, Sanjay
  • Rout, Debasis

Abstract

Circuit card assemblies may include an enclosure, first and second circuit boards installed, and a standoff for mounting the first and second circuit boards within the enclosure. The standoff includes a support body extending between the first and second circuit boards and has a first end and a second end. The first end is proximate the first circuit board and the second end is proximate the second circuit board. A threaded portion extends from the first end and passes through an aperture of the first circuit board. An internal bore is defined within the support body and includes an opening at the second end of the support body. A sleeve extends from the second end of the support body and has an opening aligned with the opening of the internal bore. The sleeve extends into an aperture of the second circuit board with a support shelf defined around the sleeve.

IPC Classes  ?

  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack
  • H05K 1/14 - Structural association of two or more printed circuits

18.

INPUT ISOLATED VOLTAGE MONITOR

      
Document Number 03228302
Status Pending
Filing Date 2024-02-05
Open to Public Date 2025-04-09
Owner HAMILTON SUNDSTRAND CORPORATION (USA)
Inventor
  • Kalluri, Nageswara Rao
  • Ghose, Tanay
  • Kumar, Manish
  • Banahatti, Bapu Kallappa
  • Jain, Premanshi

Abstract

A voltage monitor for a fly-back circuit. The circuit includes a voltage source, a transformer comprising a primary winding electrically coupled to the voltage source and a secondary winding electrically coupled to a load, a diode connected between the secondary winding and the load, a switch electrically coupled to the primary winding and a controller operable to open and close the switch to control energy transfer from the primary winding to tire secondary winding. The voltage monitor is connected to a node between the secondary winding and tire diode that generates an output signal that is a toggling output when the voltage source is operating above an input voltage threshold and a constant output when the voltage source is operating below the input voltage threshold.

IPC Classes  ?

  • H02M 1/32 - Means for protecting converters other than by automatic disconnection
  • H02M 3/156 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators

19.

INPUT ISOLATED VOLTAGE MONITOR WITH VOLTAGE TRACKING

      
Document Number 03228317
Status Pending
Filing Date 2024-02-05
Open to Public Date 2025-04-09
Owner HAMILTON SUNDSTRAND CORPORATION (USA)
Inventor
  • Kalluri, Nageswara Rao
  • Ghose, Tanay
  • Kumar, Manish
  • Banahatti, Bapu Kallappa
  • Jain, Premanshi

Abstract

A fly-back circuit includes a voltage source, a transformer comprising a primary winding electrically coupled to the voltage source and a secondary winding electrically coupled to a load, a diode connected between the secondary winding and the load, a switch electrically coupled to the primary winding, a controller operable to open and close the switch to control energy transfer from the primary winding to the secondary winding; and a voltage monitor connected to a node between the secondary winding and the diode. Tire voltage monitor includes a processor that generates a variable threshold tracking voltage (Vthtracking), generates an output signal that is a toggling output when voltage at the node is above Vthtracking and a constant output when the voltage source is operating below Vthtracking and increases Vthtracking when the output signal is toggling until the output signal is not toggling.

IPC Classes  ?

  • H02M 1/32 - Means for protecting converters other than by automatic disconnection
  • H02M 3/28 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC

20.

HIGH VOLTAGE DC CONTACTOR ISOLATION VIA ELECTROMECHANICAL ACTUATION

      
Application Number 18479349
Status Pending
Filing Date 2023-10-02
First Publication Date 2025-04-03
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Seagren, Robert L.
  • Gomes, Alex
  • Swenson, Joshua C.

Abstract

A high voltage DC contactor control system. The system reduces/eliminates arcing in in contactors and includes a short circuit protection system operably connected to the drive voltage configured to reducing arcing between portions of the contactor. The short circuit protection system includes a first arc prevention element and a first arc prevention driver configured to cause the first arc prevention element to be disposed between the first and second portions of the first contactor to prevent arcing between them.

IPC Classes  ?

  • H01H 33/06 - Insulating body insertable between contacts
  • H01H 33/04 - Means for extinguishing or preventing arc between current-carrying parts
  • H01H 33/26 - Means for detecting the presence of an arc or other discharge
  • H01H 33/42 - Driving mechanisms
  • H01H 33/664 - ContactsArc-extinguishing means, e.g. arcing rings

21.

CABIN OCCUPANCY SENSOR FOR AIRCRAFT ECS

      
Application Number 18479519
Status Pending
Filing Date 2023-10-02
First Publication Date 2025-04-03
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Bartosz, Lance R.
  • Pess, Matthew L.
  • Dowty, Mark B.

Abstract

A method is disclosed for controlling an atmosphere within an aircraft. The method includes sensing, by at least one cabin occupancy sensor, a number of empty seats within a cabin of the aircraft. Data representative of the number of empty seats from the at least one cabin occupancy sensor is communicated by the at least one cabin occupancy sensor to an electronic controller. The electronic controller is in communication with a cabin air circulation system and an environmental control system. The electronic controller sends a flow command to the environmental control system and the cabin air circulation system to adjust a rate of an air inflow into the cabin based on the number of empty seats sensed by the at least one cabin occupancy sensor.

IPC Classes  ?

  • B64D 13/08 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled
  • B64D 13/06 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned

22.

MID-PRESSURE WATER SEPARATION FOR ENVIRONMENTAL CONTROL SYSTEM

      
Application Number 18480176
Status Pending
Filing Date 2023-10-03
First Publication Date 2025-04-03
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Army, Donald E.
  • Mccord, Patrick
  • Vatter, Thomas E.

Abstract

A water separator for use in an environmental control system of an aircraft includes a coalescing channel having a curved housing. The coalescing channel has a hollow interior. A coalescing insert is arranged within the hollow interior of the coalescing channel. The coalescing insert has an upstream end, a downstream end, and plurality of fluidly distinct flow channels extending between the upstream end and the downstream end such that the plurality of fluidly distinct flow channels receive a flow of medium in parallel.

IPC Classes  ?

  • B01D 45/08 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
  • F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
  • F25B 9/06 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
  • F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

23.

RAM AIR TURBINE STOW ACTUATION CONTROL

      
Application Number 18522861
Status Pending
Filing Date 2023-11-29
First Publication Date 2025-04-03
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Hegde, Anasooya
  • Kumar, Atul

Abstract

A ram air turbine system of an aircraft includes a ram air turbine selectably movable between a stowed position and an extended position at an aircraft, and a retraction mechanism operably connected to the ram air turbine and configured to selectably move the ram air turbine from the extended position toward the stowed position. A stow panel is separate from the aircraft and is selectably connectible to the retraction mechanism. The stow panel is configured to signal the retraction mechanism to initiate movement of the ram air turbine from the extended position.

IPC Classes  ?

  • B64D 41/00 - Power installations for auxiliary purposes

24.

AIRCRAFT FUEL SYSTEM CONTAMINATION DETECTOR

      
Application Number 18521776
Status Pending
Filing Date 2023-11-28
First Publication Date 2025-04-03
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kappa Venkata, Suresh Babu
  • Annumandla, Srikanth

Abstract

A fuel tank system is disclosed. The fuel tank system includes a fuel tank and a detection system associated with the fuel tank. The detection system includes a source device emitting light into the fuel tank and an analysis device. The analysis device includes a collection device capturing scattered light resulting from the emitted light interacting with fuel in the fuel tank and providing an optical signal corresponding to the captured scattered light. The analysis device includes an optical detection device converting the optical signal to an electronic signal representative of properties of the captured scattered light and a computing device. In one or more embodiments, the computing device generates, based on the electronic signal, data including an indication of: a presence or absence of one or more contaminants in the fuel tank, a type of the one or more contaminants, and location information of the fuel and contaminants.

IPC Classes  ?

  • G01N 21/94 - Investigating contamination, e.g. dust
  • B60K 15/03 - Fuel tanks
  • B64D 37/00 - Arrangements in connection with fuel supply for power plant
  • G01N 21/90 - Investigating the presence of flaws, defects or contamination in a container or its contents

25.

TWO POSITION FEEDBACK VALVE

      
Application Number 18371748
Status Pending
Filing Date 2023-09-22
First Publication Date 2025-03-27
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Berube, Connor
  • Kelly, Myles R.

Abstract

A valve system includes a valve body defining an inlet, an outlet, and a flow path connecting the inlet in fluid communication with the outlet through one or more flow paths through the valve body. A poppet is slidingly engaged to the valve body for movement along an axis, between a first position allowing flow though the flow path, and a second position blocking flow the flow path. An electrical circuit makes a path through the valve body. A controller is operatively connected to the electrical circuit, configured to monitor electrical resistance of the electrical circuit and to output a signal indicative of open or closed state of the valve based on whether electrical resistance of the electrical circuit is at a first level or at a second level.

IPC Classes  ?

  • F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
  • F16K 27/02 - Construction of housingsUse of materials therefor of lift valves

26.

KIDNEY PORT CONFIGURATIONS IN PORT PLATES FOR BALANCED VANES

      
Application Number 18371770
Status Pending
Filing Date 2023-09-22
First Publication Date 2025-03-27
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Goy, Edward W.
  • Kassel, John M.

Abstract

A vane pump system includes a kidney port plate engaged at an axial end of a rotor and liner. The port kidney plate includes an over vane inlet port configured to be circumferentially aligned with an inlet arc segment of a circumferential cam surface of the liner for ingress of fluid to a plurality of vanes, and an over vane discharge port configured to be circumferentially aligned with a discharge arc segment of the circumferential cam surface for discharging pressurized fluid from the plurality of vanes. The kidney port plate includes at least six kidney ports radially inward from the over vane inlet port and the over vane discharge port. The kidney ports are circumferentially spaced apart from one another. The kidney ports are configured to be radially aligned with vane slots of the rotor for pressure balancing across over vane and under vane ends of the plurality of vanes.

IPC Classes  ?

  • F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
  • F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
  • F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

27.

AUTO-DISCHARGE FOR CAPACITIVE DEVICES

      
Application Number 18371807
Status Pending
Filing Date 2023-09-22
First Publication Date 2025-03-27
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Avritch, Steven A.
  • Wilson, Michael A.
  • Trotman, Alexander

Abstract

A capacitive system includes a module circuit card assembly including a first modular keying and alignment mechanism and a second modular keying and alignment mechanism. The first and second modular keying and alignment mechanisms are configured for mechanical alignment and electrical connection with a backplane circuit card assembly (CCA). A capacitor is mounted to the module circuit card assembly and is electrically connected to each of the first and second modular keying and alignment mechanisms through a charge/discharge circuit. The circuit is configured to: charge the capacitor with the module circuit card assembly connected to the backplane CCA, discharge the capacitor with the module circuit card assembly connected to the backplane CCA for providing backup power, and discharge the capacitor through a bleed resistor of the circuit upon disconnection of the module circuit card assembly from the backplane CCA.

IPC Classes  ?

  • H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
  • H01R 12/73 - Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

28.

Dynamic live hinge spring optimized impeller

      
Application Number 18649391
Grant Number 12258871
Status In Force
Filing Date 2024-04-29
First Publication Date 2025-03-25
Grant Date 2025-03-25
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Winn, Alden
  • Solomon, Andrew

Abstract

An impeller includes a cylindrical portion defining a fluid inlet, the cylindrical portion coaxial with a rotational axis of the impeller, a hub, a shroud extending downward and radially away from the cylindrical portion and covering the hub, a plurality of vanes extending between the shroud and the hub, a fluid outlet downstream of the plurality of vanes, a plurality of doors disposed circumferentially about the cylindrical portion proximate the inlet, and a spring element attached to and disposed between each of the plurality of doors and the cylindrical portion. Each of the plurality of doors is actuatable, via the spring element, between a first state and a second state.

IPC Classes  ?

  • F01D 17/14 - Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
  • F01D 5/22 - Blade-to-blade connections, e.g. by shrouding
  • F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion

29.

Integrated two-stage impeller

      
Application Number 18647636
Grant Number 12253008
Status In Force
Filing Date 2024-04-26
First Publication Date 2025-03-18
Grant Date 2025-03-18
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Winn, Alden Lee
  • Solomon, Andrew W.

Abstract

An impeller includes a cylindrical portion defining a fluid inlet, the cylindrical portion coaxial with a rotational axis of the impeller, a hub, a shroud extending downward and radially away from the cylindrical portion and covering the hub, a first plurality of vanes extending between the shroud and the hub, and an extension portion disposed between the shroud and the hub and downstream of the first plurality of vanes. The extension portion includes an outer ring, and inner ring, and a second plurality of vanes extending between the outer ring and the inner ring.

IPC Classes  ?

  • F01D 9/04 - NozzlesNozzle boxesStator bladesGuide conduits forming ring or sector
  • F01D 5/22 - Blade-to-blade connections, e.g. by shrouding
  • F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion

30.

AIRCRAFT COMPONENT ADDITIVELY HAVING THERMALLY ADAPTIVE MATERIAL AND A THERMOELECTRIC JUNCTION

      
Application Number 18464139
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A device, having: a base having an outer boundary and a plurality of base voids, formed from a first material having a first coefficient of thermal expansion (CTE); beads that line ones of the base voids, formed from a second material having a second CTE that differs from the first CTE, wherein each of the beads has a bead void; and a thermoelectric junction around the outer boundary, or within one or more of the bead voids.

IPC Classes  ?

  • F03G 7/06 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like
  • B64C 9/24 - Adjustable control surfaces or members, e.g. rudders forming slots at the front of the wing by single flap
  • B64C 13/40 - Transmitting means with power amplification using fluid pressure

31.

COMPRESSOR SHROUD WITH CONTROLLABLE BYPASS COMPONENT FORMED OF THERMALLY ADAPTIVE MATERIALS AND A THERMOELECTRIC JUNCTION

      
Application Number 18464142
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A compressor case having a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.

IPC Classes  ?

  • F04D 27/00 - Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
  • H10N 10/10 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
  • H10N 10/85 - Thermoelectric active materials

32.

AIRCRAFT ACTUATOR FORMED OF THERMALLY ADAPTIVE MATERIALS AND A THERMOELECTRIC JUNCTION

      
Application Number 18464153
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

An actuator having a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.

IPC Classes  ?

  • H02N 10/00 - Electric motors using thermal effects
  • F03G 7/06 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like

33.

AIRFOIL FORMED OF THERMALLY ADAPTIVE MATERIALS AND A THERMOELECTRIC JUNCTION

      
Application Number 18464159
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

An airfoil having: a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.

IPC Classes  ?

  • B64C 3/48 - Varying camber by relatively-movable parts of wing structures
  • B64C 3/14 - Aerofoil profile

34.

LOCKING DEVICE FORMED OF THERMALLY ADAPTIVE MULTI-METALLIC MATERIAL AND A THERMOELECTRIC JUNCTION AND METHOD OF MANUFACTURING THE SAME

      
Application Number 18464160
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A locking device having: a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.

IPC Classes  ?

  • H10N 10/817 - Structural details of the junction the junction being non- separable, e.g. being cemented, sintered or soldered
  • H10N 10/01 - Manufacture or treatment
  • H10N 10/82 - Interconnections
  • H10N 10/851 - Thermoelectric active materials comprising inorganic compositions

35.

FLOW CONTROL DEVICE FORMED OF THERMALLY ADAPTIVE MATERIAL AND A THERMOELECTRIC JUNCTION

      
Application Number 18464164
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A flow control device, having: a flow tube extending between upstream and downstream, and a neck region between the first and second ends, wherein the flow tube includes: a wall defining an outer boundary and extending longitudinally from a first end to a second end and transversely from a first side to a second side, wherein: the wall is nonmetal; the wall defines: a first segment extending longitudinally between the first and second ends and transversely from the first side to a segment junction; and a second segment extending longitudinally between the first and second ends and transversely from the second side to the segment junction; and the first segment has a first coefficient of thermal expansion (CTE) and the second segment has a second CTE that differs from the first CTE, to define a transverse CTE gradient.

IPC Classes  ?

  • G05D 7/06 - Control of flow characterised by the use of electric means
  • H10N 10/80 - Constructional details

36.

COMPRESSOR ASSEMBLY WITH HYBRID AIRFOIL AND AUXILIARY MAGNETIC BEARINGS

      
Application Number 18464964
Status Pending
Filing Date 2023-09-11
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A compressor assembly is provided and includes a fluid pathway, a compressor disposed and configured to compress fluid flowing along the fluid pathway and a motor configured to drive operations of the compressor. The motor includes one or more hybrid airfoil bearings to support the shaft within a housing. Each of the one or more hybrid airfoil bearings includes airfoil bearing components including a top foil immediately surrounding the shaft and additional components and passive magnetic bearing components integrated into the shaft and the additional components of the airfoil bearing components to remove a static load of the shaft on the top foil.

IPC Classes  ?

  • F04D 29/058 - Bearings magneticBearings electromagnetic
  • F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
  • H02K 7/09 - Structural association with bearings with magnetic bearings

37.

MINIMUM EQUIPMENT LIST SYSTEMS FOR AIRCRAFT

      
Application Number 18367334
Status Pending
Filing Date 2023-09-12
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Gomes, Alex
  • Scully, Michael J.

Abstract

An automated minimum equipment list (MEL) system for an aircraft can include a control module operatively connected to a plurality of aircraft components. The control module can be configured to receive information relating to the plurality of aircraft components, and determine that one or more inoperative components exist in the plurality of aircraft components based on the information relating to the plurality of aircraft components. The control module can be configured to automatically determine whether one or more MEL dispatch conditions exist based on a stored MEL and the one or more inoperative components. The control module can be configured to control at least one of the plurality of aircraft components to configure the plurality of aircraft components to comply with at least one MEL dispatch condition if one or more MEL dispatch conditions exist to allow the aircraft to dispatch with the one or more inoperative components.

IPC Classes  ?

  • B64F 5/60 - Testing or inspecting aircraft components or systems
  • B64D 45/00 - Aircraft indicators or protectors not otherwise provided for

38.

ALIGNMENT COMB FOR CONNECTOR CONTACTS

      
Application Number 18367419
Status Pending
Filing Date 2023-09-12
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Canciamille, Catherine
  • Kilroy, Kevin

Abstract

In accordance with at least one aspect of this disclosure, a system includes, an alignment comb configured to prevent rotation of a contact pin of a connector relative to the connector. In embodiments, the alignment comb can be of a non-electrically conductive material. In embodiments, the alignment comb includes, a planar portion extending along a longitudinal axis between a first end and a second end, an aperture defined in the planar portion, and a slot defined at least partially within the planar portion. Embodiments of the slots within the alignment comb allow the comb to slide along the first and second respective contact pins such that the alignment comb can be lifted to allow for application of a conformal coating on the contact pins and/or to allow soldering the contact pins to a printed wiring board.

IPC Classes  ?

  • H01R 43/20 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
  • H01R 12/71 - Coupling devices for rigid printing circuits or like structures

39.

AIRCRAFT FLOW CONTROL DEVICE FORMED OF THERMALLY ADAPTIVE MATERIALS AND A THERMOELECTRIC JUNCTION

      
Application Number 18464157
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A flow control device having: a composition gradient defining a first coefficient of thermal expansion and a second coefficient of thermal expansion that differs from the first coefficient of thermal expansion; and a thermoelectric junction operationally coupled to the composition gradient, wherein the composition gradient is formed of either of a plurality of dissimilar metals or of plastic with fillings or fibers.

IPC Classes  ?

  • F03G 7/06 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like
  • B64C 9/24 - Adjustable control surfaces or members, e.g. rudders forming slots at the front of the wing by single flap
  • B64C 13/40 - Transmitting means with power amplification using fluid pressure

40.

ACTUATOR FORMED OF THERMALLY ADAPTIVE MATERIAL AND A THERMOELECTRIC JUNCTION

      
Application Number 18464163
Status Pending
Filing Date 2023-09-08
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

An actuator, having: an actuator body extending between an actuator top and an actuator bottom, a top actuator support located at the actuator top and a bottom actuator support located at the actuator bottom, wherein the actuator body includes: a wall defining an outer boundary and extending longitudinally from a first end to a second end and transversely from a first side to a second side, wherein: the wall is nonmetal; the wall defines: a first segment extending longitudinally between the first and second ends and transversely from the first side to a segment junction; and a second segment extending longitudinally between the first and second ends and transversely from the second side to the segment junction; and the first segment has a first coefficient of thermal expansion (CTE) and the second segment has a second CTE that differs from the first CTE, to define a transverse CTE gradient.

IPC Classes  ?

  • H10N 10/817 - Structural details of the junction the junction being non- separable, e.g. being cemented, sintered or soldered
  • H10N 10/13 - Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction

41.

AIR CYCLE MACHINE (ACM) WITH HYBRID AIRFOIL AND AUXILIARY MAGNETIC THRUST BEARINGS

      
Application Number 18464957
Status Pending
Filing Date 2023-09-11
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A hybrid airfoil thrust bearing is provided for a shaft including a thrust disc that rotates with the shaft. The hybrid airfoil thrust bearing includes airfoil bearing components and passive magnetic bearing components. The hybrid airfoil bearing components include a first top foil immediately adjacent to a first side of the thrust disc and surrounding the shaft, first additional components, a second top foil immediately adjacent to a second side of the thrust disc and surrounding the shaft and second additional components. The passive magnetic bearing components are integrated into the thrust disc and into the first and second additional components to remove a static load of the thrust disc on the first top foil and on the second top foil.

IPC Classes  ?

  • F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
  • F04D 29/057 - Bearings hydrostaticBearings hydrodynamic
  • F04D 29/058 - Bearings magneticBearings electromagnetic
  • F16C 17/04 - Sliding-contact bearings for exclusively rotary movement for axial load only

42.

LINE REPLACEABLE UNIT AIRCRAFT DATA PREDICTION AND CONFIGURATION

      
Application Number 18465470
Status Pending
Filing Date 2023-09-12
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor Beitlich, Ryan

Abstract

A line replaceable unit (LRU) includes a data communication interface configured to receive identification (ID) data from an aircraft communication bus, an aircraft systems interface configured to receive aircraft systems data corresponding to an operation of at least one aircraft system, and an LRU data interface configured to receive LRU data corresponding to the LRU. The LRU further includes a processor and a memory unit. The processor processes the aircraft systems data and the LRU data and determine at least one data category. The memory unit includes a plurality of data partitions. The processor is configured to generate at least one configuration data package by combining the ID data with one or both of the aircraft systems data and the LRU data, and to store the configuration data package in a given data partition based on the data category.

IPC Classes  ?

43.

ENGINE AUGMENTOR FUEL PUMPS POWERED BY AUXILIARY POWER UNIT (APU)

      
Application Number 18244362
Status Pending
Filing Date 2023-09-11
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Ramprashad, Sachin
  • Susca, Ryan Prescott

Abstract

A system includes an augmentor fuel pump (AFP) configured to be connected to be driven by a gearbox of an auxiliary power unit (APU). An augmentor fuel control (AFC) is connected in fluid communication with the AFP and configured to control supply of fuel to one or more engine augmentors. A controller can be operatively connected to control the APU for a startup mode, a run mode, and a powered down mode.

IPC Classes  ?

  • F02C 7/236 - Fuel delivery systems comprising two or more pumps
  • F02C 7/232 - Fuel valvesDraining valves or systems

44.

VARIABLE DISPLACEMENT PUMP (VDP) SYSTEMS WITH DUAL DRY OUT PUMPS

      
Application Number 18244390
Status Pending
Filing Date 2023-09-11
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Shook, Ryan
  • Susca, Ryan Prescott

Abstract

A fuel system includes a main fuel pump sub-system (MFP) with an inlet for receiving a supply of fuel from an inlet line. The MFP has a main outlet line configured to supply fuel to a main fuel throttle valve assembly (MFTV), a first cross-over outlet line, and a second cross-over outlet line. An augmentor fuel pump sub-system (ABFP) has an inlet connected in fluid communication with the first cross-over outlet line, and an outlet connected in fluid communication with a main augmentor supply line. A variable displacement pump sub-system (VDPP) has an inlet connected in fluid communication with the second cross-over outlet line, a first outlet line configured to connect to supply fuel to the MFTV, and a second outlet line configured to connect to supply fuel to an actuation system.

IPC Classes  ?

  • F04B 23/14 - Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type
  • F02C 7/236 - Fuel delivery systems comprising two or more pumps

45.

VARIABLE DISPLACEMENT PUMP (VDP) SYSTEMS WITH DRY-OUT CENTRIFUGAL MAIN PUMP

      
Application Number 18244425
Status Pending
Filing Date 2023-09-11
First Publication Date 2025-03-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Shook, Ryan
  • Susca, Ryan Prescott

Abstract

A fuel system a main fuel pump sub-system (MFP) with an inlet for receiving a supply of fuel from an inlet line. The MFP has a main outlet line configured to supply fuel to a main fuel throttle valve assembly (MFTV), and a cross-over outlet line. A variable displacement pump sub-system (VDPP) has a first inlet connected in fluid communication with the cross-over outlet line, a second inlet connected to a branch of the main outlet line, a first outlet line configured to connect to supply fuel to the MFTV, and a second outlet line configured to connect to supply fuel to an actuation system.

IPC Classes  ?

  • F02C 7/236 - Fuel delivery systems comprising two or more pumps
  • F04B 23/14 - Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type

46.

SYSTEMS AND METHODS FOR REDUNDANT OVERVOLTAGE PROTECTION FUNCTIONS

      
Application Number 18495853
Status Pending
Filing Date 2023-10-27
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Puthan Veetil, Divya
  • Kabade, Raghavendra D
  • Pai, Sandeep Suresh

Abstract

A power generation system includes a rotating machine having a mechanical rotational output. An electrical generator is connected to the mechanical rotational output, and has an electrical output electrically connected to a power distribution system. A generator control unit is controllably coupled to at least the electrical generator. The generator control unit includes a memory and a processor. The generator control unit is configured to operate in conjunction with an overvoltage protection unit including a redundant overvoltage operational test system. The redundant overvoltage operational test system includes an operational amplifier configured to operate as a voltage follower during a first mode of operations, and as a point of regulation gain amplifier during a redundant overvoltage operational test.

IPC Classes  ?

  • H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
  • H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output

47.

SWITCHED RELUCTANCE ELECTRIC MACHINE

      
Application Number 18615537
Status Pending
Filing Date 2024-03-25
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Tangudu, Jagadeesh K.
  • Koenig, Andreas C.
  • Dwari, Suman
  • Spierling, Todd A.

Abstract

Aircraft electric machines are described. The aircraft electric machines include a laminated rotor operably connected to a shaft, the laminated rotor comprising a plurality of rotor teeth and air gaps defined between adjacent rotor teeth about a circumference of the laminated rotor, a modular stator assembly comprising at least one stator segment having a winding wrapped about a center body of the at least one stator segment, a cooling element arranged at least one of adjacent to or within the winding, and at least one power module system comprising an active rectifier and wherein the laminated rotor and modular stator are arranged as a switched reluctance rotor-stator assembly.

IPC Classes  ?

  • H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
  • B64D 27/30 - Aircraft characterised by electric power plants
  • B64D 33/08 - Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of power plant cooling systems
  • H02K 1/24 - Rotor cores with salient poles
  • H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
  • H02K 11/04 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification

48.

Controllable fuel nozzle valves with redundancy

      
Application Number 18238792
Grant Number 12270344
Status In Force
Filing Date 2023-08-28
First Publication Date 2025-03-06
Grant Date 2025-04-08
Owner Hamilton Sundstrand Corporation (USA)
Inventor Mcbrien, Gary

Abstract

A fuel system a main manifold with an inlet and a plurality of main manifold branches. Each valve in a plurality of valves is connected in fluid communication with a respective one of the main manifold branches in the plurality of main manifold branches to receive flow from the main manifold. Each secondary manifold in a plurality of secondary manifolds connects a single one of the valves in the plurality of valves to a pair of secondary manifold branches. Each nozzle in a plurality of fuel nozzles includes a first inlet connected in fluid communication to one of the valves through one of the secondary manifold branches, and a second inlet connected in fluid communication to a different one of the valves through a different one of the secondary manifold branches so each of the fuel nozzles has a redundant connection to the main manifold through two of the valves.

IPC Classes  ?

49.

PRESSURE SENSOR MANIFOLDS FOR HIGH TEMPERATURES

      
Application Number 18238811
Status Pending
Filing Date 2023-08-28
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Carpenter, Richard J.
  • Kamm, James J.
  • Clavette, Patrick Louis
  • Ahmed, Shalman
  • Kelly, Myles R.
  • Pal, Debabrata

Abstract

A pressure sensing system includes a housing that houses one or more pressure transducers therein. A tube is sealed to the housing at a first end of the tube. One or more pressure transducers are in fluid communication with a second end of the tube through an inner passage of the tube for sensing pressure at the second end of the tube.

IPC Classes  ?

  • G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
  • F01D 17/08 - Arrangement of sensing elements responsive to condition of working fluid, e.g. pressure

50.

AN AIR COOLED ELECTRIC MOTOR HAVING AN INCREASED AIRFLOW AND A METHOD FOR INCREASING THE AIRFLOW THEREIN

      
Application Number 18239639
Status Pending
Filing Date 2023-08-29
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Sellers, Benjamin
  • Simpson, Christopher
  • Schuster, Zachary Alex
  • Clavette, Jeremy

Abstract

A method for increasing stator cooling airflow in an air cooled electric motor is provided, wherein the air cooled electric motor includes a compressor outlet housing having a motor cavity separator wall and a separator plate defining a separator plate opening, wherein the compressor outlet housing defines a separator plate cavity and a compressor rotor back-face cavity configured to receive a back-face cavity airflow. The motor cavity separator wall separates the separator plate cavity from the compressor rotor back-face cavity and defines a motor cavity separator wall through-hole which communicates the separator plate cavity with the compressor rotor back-face cavity and a motor cooling housing including a motor cooling outlet structure which defines a stator outlet cavity, wherein the separator plate is disposed to separate the stator outlet cavity from the separator plate cavity.

IPC Classes  ?

  • H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium

51.

ALUMINUM SHEET WITH DIELECTRIC COATING ISOLATION BARRIER

      
Application Number 18240521
Status Pending
Filing Date 2023-08-31
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Yang, Nhia
  • Belisle, Francis C.
  • Gackstetter, David
  • Canciamille, Catherine

Abstract

The present disclosure provides for barrier wall assemblies (e.g., isolation barrier wall assemblies having embossed aluminum sheets coated with dielectric coatings). More particularly, the present disclosure provides for barrier wall assemblies configured to be positioned between electric power distribution components (e.g., positioned between power distribution components of different voltages or different criticality so that a fault in one section or component functional group will not affect adjacent areas).

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

52.

LESS BLEED ENVIRONMENTAL CONTROL SYSTEM

      
Application Number 18460999
Status Pending
Filing Date 2023-09-05
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor Vignali, Mark G.

Abstract

An environmental control system of an aircraft has a plurality of inlets including a first inlet for receiving a first medium and a second inlet for receiving a second medium. A thermodynamic device includes a compressor and at least one turbine and is fluidly coupled to the second inlet. A ram air circuit has a plurality of heat exchangers including a first heat exchanger and a second heat exchanger and is fluidly coupled to both the first inlet and the thermodynamic device. In a first mode, an outlet of the thermodynamic device is fluidly connected to the ram air circuit downstream from both the first heat exchanger and the second heat exchanger. In a second mode, the outlet of the thermodynamic device is fluidly connected to an inlet of one of the plurality of heat exchangers.

IPC Classes  ?

  • B64D 13/08 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled

53.

DATA-ENABLED AIRCRAFT GENERATOR

      
Application Number 18461622
Status Pending
Filing Date 2023-09-06
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor Peterson, Paul J.

Abstract

A data-enabled aircraft generator module includes a generator and a generator memory unit. The generator is configured to power an aircraft based at least in part on at least one control signal output from a generator control unit (GCU). The generator memory unit configured to exchange data with the GCU.

IPC Classes  ?

  • H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks

54.

PISTON RINGS AND BARREL SLEEVES

      
Application Number 18238774
Status Pending
Filing Date 2023-08-28
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Jarman, Jecee
  • Le Duc, Zachary Allen Ray
  • Shoemaker, Mark W.

Abstract

A pump assembly includes a cylinder block defining a piston bore therein extending in an axial direction. A sleeve lines the piston bore. A piston is included in the piston bore, configured to reciprocate along a stroke in the axial direction within the sleeve. A piston ring is engaged circumferentially about the piston. The piston ring is fixed to the piston and is slidingly engaged to an inner surface of the sleeve.

IPC Classes  ?

  • F16J 10/04 - Running facesLiners
  • F16J 9/26 - Piston-rings, seats thereforRing sealings of similar construction in general characterised by the use of particular materials

55.

BEARING ARRANGEMENT FOR PUMPS

      
Application Number 18238919
Status Pending
Filing Date 2023-08-28
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Le Duc, Zachary Allen Ray
  • Goy, Edward W.
  • Wetch, Joseph

Abstract

In accordance with at least one aspect of this disclosure, a pump comprises a pump rotor having a plurality of vanes therein configured to pump a fluid from a pump inlet to a pump outlet through rotation of the rotor about a rotational axis, an input shaft operatively connected to drive rotation of the rotor, and a bearing operatively connected to the input shaft configured to facilitate rotation of the input shaft. A shaft extender is operatively connected radially between the input shaft and the bearing. The input shaft includes a conical portion and the shaft extender includes a conical portion complementary to the conical portion of the input shaft. The shaft extender interfaces with at least the conical portion of the input shaft, when on the input shaft.

IPC Classes  ?

  • F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
  • F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

56.

SELF-ACTUATED BLEED VALVES FOR GAS TURBINE ENGINES

      
Application Number 18239436
Status Pending
Filing Date 2023-08-29
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Zawilinski, David J.
  • Goodman, Robert B.
  • Simpson, Scott W.

Abstract

A bleed valve includes a housing. The housing includes an inlet and an outlet with a cylindrical flow path defined between the inlet and the outlet. A diametral plane is defined diametrically spanning the cylindrical flow path. A butterfly disc inside the housing is rotatably mounted to the housing along a rotation axis for rotation between an open position and a closed position. A link rotatably is connected to a pivot point on the butterfly disc for relative rotation of the link and the butterfly disc along a pivot axis parallel to the rotation axis. The pivot axis is on an opposite side of the diametral plane from the rotation axis.

IPC Classes  ?

  • F02C 9/18 - Control of working fluid flow by bleeding, by-passing or acting on variable working fluid interconnections between turbines or compressors or their stages
  • F01D 17/10 - Final actuators
  • F01D 19/00 - Starting of machines or enginesRegulating, controlling, or safety means in connection therewith
  • F02C 7/26 - StartingIgnition

57.

SUSTAINED UNDERVOLTAGE PROTECTION

      
Application Number 18242728
Status Pending
Filing Date 2023-09-06
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor Seagren, Robert L.

Abstract

A method includes detecting a modulating undervoltage state having transients above an undervoltage threshold and triggering a protection upon detecting the modulating undervoltage state. The method can include detecting a steady state undervoltage condition, wherein triggering a protection includes triggering the protection upon detecting the steady state undervoltage condition or the modulating undervoltage state. A system includes a power source including a feedback sensor at a point of regulation (POR) of the power source configured to generate feedback indicative of voltage at the POR. A controller is operatively connected to receive the feedback. The controller includes controller logic that is configured perform a method as described above.

IPC Classes  ?

  • H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
  • H02P 9/48 - Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
  • H02P 25/024 - Synchronous motors controlled by supply frequency

58.

HEAT EXCHANGER CORE LAYER PIN

      
Application Number 18814204
Status Pending
Filing Date 2024-08-23
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Meczkowski, Tomasz
  • Kaluza, Przemyslaw

Abstract

A pin for a core layer of a heat exchanger past which fluid flowing through the layer passes, the pin having a leading edge, a trailing edge, a first and a second end and, an outer surface between leading edge and trailing edge and the first and second ends, and wherein the pin comprises a pin core extending from the first end to the second end and defining the leading edge and the trailing edge, and a plurality of vanes extending from the pin core each vane extending between the leading edge and the trailing edge, and the vanes arranged one above another in the direction from the first end to the second end.

IPC Classes  ?

  • F28F 3/04 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
  • F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall

59.

MOTOR RADIATOR

      
Application Number 18819173
Status Pending
Filing Date 2024-08-29
First Publication Date 2025-03-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Meczkowski, Tomasz
  • Kaluza, Przemyslaw

Abstract

A cooling structure for a rotary electric machine. The structure includes an annular radiator body defining an axis X between a first end and a second end. The annular body has a radially inner wall and a radially outer wall and a plurality of channels defined between the radially inner wall and the radially outer wall. Each channel extends from the first end to the second end and each channel has an inner channel wall. A plurality of vanes extending inwardly into the channel from the channel wall.

IPC Classes  ?

  • H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
  • H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing

60.

Single variable displacement fuel systems with fuel oil cooler bypass and gas generator fault accommodation

      
Application Number 18390197
Grant Number 12241414
Status In Force
Filing Date 2023-12-20
First Publication Date 2025-03-04
Grant Date 2025-03-04
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Susca, Ryan Prescott
  • Ramprashad, Sachin
  • Shook, Ryan

Abstract

A system includes an actuation pump sub-system (APS). A fuel oil cooler (FOC) is included in a first branch of a supply line. The FOC is in fluid communication to receive flow from a second outlet of the APS. The APS includes a bypass valve (BPV) in a second branch of the supply line, in parallel with the FOC and in fluid communication to allow flow from the third outlet into the supply line bypassing the FOC. A combined main and augmentor pump sub-system (CMAPS) has a main inlet connected in fluid communication with the supply line downstream of the BPV and FOC, a gas generator (GG) outlet for supplying fuel to a downstream gas generator, and an augmentor outlet for supplying fuel to a downstream augmentor.

IPC Classes  ?

  • F02C 7/14 - Cooling of plants of fluids in the plant
  • F02C 7/22 - Fuel supply systems
  • F23R 3/28 - Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply

61.

HEAT EXCHANGER CORE GEOMETRIES USED AS SUPPORT MATERIAL AND FLUID CONNECTIVITY PASSAGES FOR HEAT EXCHANGER HEADERING

      
Application Number 18236614
Status Pending
Filing Date 2023-08-22
First Publication Date 2025-02-27
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Saltzman, David
  • Ngatu, Grum T.
  • Adamakis, Stephen Patrick
  • Mccord, Patrick
  • Valente, Zachary

Abstract

A fluid circuit of a heat exchanger includes a core and a first header. The core is configured to receive a fluid and includes a plurality of conduits. Each of the plurality of conduits extends along a longitudinal axis from a first end portion to a second end portion. The first header is integrally formed with and fluidly connecting the plurality of conduits. Outer walls of the plurality of conduits taper outward relative to the longitudinal axes to join the first header.

IPC Classes  ?

  • F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight

62.

GENERATOR SYSTEMS

      
Application Number 18233520
Status Pending
Filing Date 2023-08-14
First Publication Date 2025-02-20
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Wilkinson, Andrew R.
  • Patel, Dhaval S.

Abstract

A generator system can include a generator control unit (GCU) configured to control a generator output of a generator. The GCU can be configured to monitor the generator output for overvoltage and attenuate an overvoltage by directing at least a portion of the generator output to a heater element. The GCU can be configured to cause voltage division of the generator output between the GCU and the heater element if an overvoltage is detected to protect one or more GCU electrical components.

IPC Classes  ?

  • H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
  • H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines

63.

AIR CONDITIONING AND VAPOR CYCLE SYSTEM

      
Application Number 18512538
Status Pending
Filing Date 2023-11-17
First Publication Date 2025-02-20
Owner Hamilton Sundstrand Corporation (USA)
Inventor Bruno, Louis J.

Abstract

An air conditioning system includes an environmental control system configured to condition a flow of medium. The environmental control system includes a thermodynamic device having a compressor and at least one turbine operably coupled by a shaft and at least one heat exchanger. A secondary system has a working fluid circulating therethrough. At least one liquid loop having at least one liquid flowing therethrough is fluidly connected to the at least one heat exchanger. The environmental control system is thermally coupled to the secondary system, via the at least one liquid loop. The at least one liquid provided at an outlet of the at least one heat exchanger is operable to cool the working fluid of the secondary system.

IPC Classes  ?

  • B64D 13/06 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned

64.

Engine fuel nozzle degradation tracking

      
Application Number 18378990
Grant Number 12228080
Status In Force
Filing Date 2023-10-11
First Publication Date 2025-02-18
Grant Date 2025-02-18
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Ramprashad, Sachin
  • Briggs, Eric

Abstract

A system includes a burn flow line and a flow divider valve in fluid communication with the burn flow line to split flow from the burn flow line to a primary line and to a secondary line for supplying fuel to a set of primary engine nozzles and to a set of secondary engine nozzles, respectively. A sensor operatively connected to the flow divider valve to produce a feedback signal indicative of flow split between the primary line and the secondary line. A controller is operatively connected to receive the feedback signal from the senor, compare the feedback signal to a stored flow split value for a mismatch, and output an alert message upon detecting the mismatch.

IPC Classes  ?

65.

LEARNING-BASED MISSION ANALYSIS AND CONTROL SYSTEM

      
Application Number 18799722
Status Pending
Filing Date 2024-08-09
First Publication Date 2025-02-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Rohrig, Jake
  • Torres, Miguel A.
  • Sandidge, Hunter
  • Wehr, Jackson Thomas
  • Kirk, Taylor

Abstract

Embodiments of the disclosure provide a deep-mission system that includes a processor system operable to perform processor system operations that include executing a first instance of a cognitive algorithm; generating data of the deep-mission system that can be used to fine-tune the first instance of the cognitive algorithm; and transmitting the data of the deep-mission system over a deep-mission communication path to a remote station. The remote station is operable to, based at least in part on the data of the deep-mission system, perform fine-tuning operations on a second instance of the cognitive algorithm located at the remote station; generate updates to the cognitive algorithm based on the fine-tuning operations; and transmit the updates to the cognitive algorithm over the deep-mission communication path to the deep-mission system. The processor system operations further include using the updates to the cognitive algorithm to update the first instance of the cognitive algorithm.

IPC Classes  ?

  • B64G 1/10 - Artificial satellitesSystems of such satellitesInterplanetary vehicles
  • G06F 11/34 - Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation

66.

RECTIFIER ASSEMBLIES

      
Application Number 18231788
Status Pending
Filing Date 2023-08-09
First Publication Date 2025-02-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor Lemmers, Jr., Glenn C.

Abstract

An electrical machine assembly includes an armature assembly defining a rotational axis and a rectifier assembly including at least one diode and defining a central rectifier axis. The armature assembly is configured and adapted to be coupled with a rotor shaft for relative rotation therewith. The central rectifier axis is at a non-parallel angle relative to the rotational axis. A rectifier assembly includes a first diode and a second diode stacked with the first diode. The rectifier assembly includes an AC terminal positioned between the first diode and the second diode and a DC positive output pin electrically coupled to the first diode. A portion of the AC terminal extends outward from the rectifier assembly at a non-parallel angle relative to the central longitudinal axis of the rectifier assembly. A central longitudinal axis of the rectifier assembly can be parallel to the DC positive output pin.

IPC Classes  ?

  • H02K 11/042 - Rectifiers associated with rotating parts, e.g. rotor cores or rotary shafts
  • H02K 19/28 - Synchronous generators characterised by the arrangement of exciting windings for self-excitation
  • H02K 19/38 - Structural association of synchronous generators with exciting machines

67.

HUMAN WASTE COLLECTION SYSTEM, FOR ZERO-GRAVITY CONDITIONS, INCLUDING USER SELECTABLE MODES FOR COLLECTING LIQUID WASTE, SOLID WASTE AND MENSES

      
Application Number 18366473
Status Pending
Filing Date 2023-08-07
First Publication Date 2025-02-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Luker, Kelly
  • Radawiec, Rochelle

Abstract

A human waste collection system having a basin defining a basin cavity and a lower end that is configured for being positioned against a floor and an upper end that is displaced further from the plane than the lower end; a storage bag system disposed in the basin cavity; a seat disposed at the upper end of the basin, the seat having a lid; a suction system having a first suction conduit extending into the basin cavity, adjacent to the upper end of the basin; a controller having a user interface that has user engageable features to select between operation modes including a first mode for removing menses and solid waste and a second mode for removing urine, wherein: in the first mode, menses and solid waste is collected in the storage bag; and in the second mode, the suction system suctions urine.

IPC Classes  ?

  • B64G 1/60 - Crew or passenger accommodations
  • A47K 11/02 - Dry closets, e.g. incinerator closets
  • E03D 9/08 - Devices in the bowl producing upwardly-directed spraysModifications of the bowl for use with such devices

68.

DRAIN SYSTEM FOR ECS WATER COLLECTION

      
Application Number 18446067
Status Pending
Filing Date 2023-08-08
First Publication Date 2025-02-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Army, Donald E.
  • Peacos, Iii, Frederick
  • Bruno, Louis J.

Abstract

An environmental control system includes a first water collector having a first drain line and a second water collector having a second drain line. The first drain line is fluidly connected to the second drain line. The environmental control system includes also includes at least one spray nozzle. An outlet of the second drain line is fluidly connected to the at least one spray nozzle.

IPC Classes  ?

  • F28F 17/00 - Removing ice or water from heat-exchange apparatus
  • B64D 13/06 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned

69.

Fuel system for dual use gas turbine engine main fuel pump

      
Application Number 18230805
Grant Number 12253029
Status In Force
Filing Date 2023-08-07
First Publication Date 2025-02-13
Grant Date 2025-03-18
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Briggs, Eric
  • Mastrocola, Naison E.

Abstract

A system includes a main pump having a main pump shaft configured to connect to a gear box for driving the main pump with rotational power from the gear box in a run mode, and for driving the gear box with rotational power from the main pump in a start mode. The system includes a first fuel line with an inlet configured to connect to connected in fluid communication with a fuel source. The first fuel line includes a first branch in fluid communication with the main pump, and a second branch. A start pump is connected in fluid communication with the second branch of the first fuel line. A second fuel line connects the start pump in fluid communication with a pump management valve (PMV). A third fuel line connects the main pump in fluid communication with the pump management valve.

IPC Classes  ?

70.

RADIAL IMPELLER WITH MAXIMIZED INDUCER AREA

      
Application Number 18366243
Status Pending
Filing Date 2023-08-07
First Publication Date 2025-02-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A rotor assembly is provided and includes a rotor impeller and rotor shaft. The rotor impeller includes a blade section and a forward section. The rotor shaft includes an aft section at which the rotor shaft terminates. The aft section is directly attached to the forward section of the rotor impeller. The blade section includes a converging blade configured to converge to a point with a minimized internal diameter (ID).

IPC Classes  ?

  • F04D 29/28 - Rotors specially adapted for elastic fluids for centrifugal or helico-centrifugal pumps

71.

CONTROLLER

      
Application Number 18791104
Status Pending
Filing Date 2024-07-31
First Publication Date 2025-02-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kulsangcharoen, Ponggorn
  • Dinu, Andrei
  • Al-Karaghouli, Ali Khalid

Abstract

A controller for an electrical drive system includes one or more electrical drives, one or more electrical loads, and a switching component configured to connect the one or more electrical drives to the one or more electrical loads in a switching configuration. The controller includes a processing module configured to receive switching data indicative of the switching configuration and analyze the switching data to determine control data for at least one of the electrical drives. The controller further includes an output module configured to output the control data to the at least one electrical drive. The at least one electrical drive is configured to use the control data to supply the electrical load/s, via the switching component, with electrical power.

IPC Classes  ?

  • B60L 15/22 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed with sequential operation of interdependent switches, e.g. relays, contactors, programme drum
  • B60L 3/12 - Recording operating variables

72.

COGNITIVE, LEARNING-BASED SYSTEM FOR MONITORING AND CONTROLLING MISSION PERFORMANCE

      
Application Number 18799710
Status Pending
Filing Date 2024-08-09
First Publication Date 2025-02-13
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Rohrig, Jake
  • Torres, Miguel A.
  • Sandidge, Hunter
  • Wehr, Jackson Thomas
  • Kirk, Taylor

Abstract

Embodiments of the disclosure provide a system for monitoring a mission. The system includes a digital ecosystem (DE) associated with the mission and positioned at a remote station. The DE, responsive to sensed data associated with deployed products positioned locally with the mission, generates performance data associated with the deployed products. A processor is provided and includes local processor resources located at the mission, along with remote processor resources at the remote station. The processor operations are performed and include executing a first cognitive algorithm to, responsive to a portion of the performance data, generate an initial cognitive output associated with an initial cognitive output action; prior to initiating the initial cognitive output action associated with the initial cognitive output, displaying to a user the initial cognitive output; and responsive to receiving user feedback on the initial cognitive output, executing post-user-feedback operations based on the user feedback.

IPC Classes  ?

  • G06N 5/02 - Knowledge representationSymbolic representation
  • G06F 30/20 - Design optimisation, verification or simulation

73.

Radial impeller with maximized inducer area

      
Application Number 18366238
Grant Number 12221976
Status In Force
Filing Date 2023-08-07
First Publication Date 2025-02-11
Grant Date 2025-02-11
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A rotor assembly is provided and includes a two-piece rotor impeller and a rotor shaft. The two-piece rotor impeller includes a blade section and a forward section, which is connected to the blade section. The rotor shaft includes an aft section at which the rotor shaft terminates. The aft section is directly attached to the forward section of the rotor impeller. The blade section includes a converging blade configured to converge to a point with a minimized internal diameter (ID).

IPC Classes  ?

  • F04D 29/28 - Rotors specially adapted for elastic fluids for centrifugal or helico-centrifugal pumps
  • F04D 17/02 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumpsHelico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal
  • F04D 17/08 - Centrifugal pumps
  • F04D 17/10 - Centrifugal pumps for compressing or evacuating
  • F04D 23/00 - Other rotary non-positive-displacement pumps specially adapted for elastic fluids
  • F04D 29/24 - Vanes
  • F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps
  • F04D 29/38 - Blades
  • F04D 29/54 - Fluid-guiding means, e.g. diffusers

74.

DETECTING AIRCRAFT 28V DISCRETE INPUTS

      
Application Number 18658761
Status Pending
Filing Date 2024-05-08
First Publication Date 2025-02-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor Verma, Richa

Abstract

A circuit for detecting discrete inputs includes a first line replaceable unit (LRU). A second LRU includes an LRU circuit that includes a power source, a diode set coupled to the power source, a resistor R3 connecting from a node Vc between the diode set and the first LRU to ground, and a logic detection and processing circuit. The logic detection and processing circuit is operably connected to the diode set, and is configured to detect a state of the first LRU based on a detected voltage. The detected voltage is either open, or 28-Volts.

IPC Classes  ?

  • G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
  • H02H 1/00 - Details of emergency protective circuit arrangements
  • H02H 7/20 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment

75.

CONTROLLER

      
Application Number 18775252
Status Pending
Filing Date 2024-07-17
First Publication Date 2025-02-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor Mclean, Andrew

Abstract

A controller, a circuit, an aircraft electrical system and a method for controlling an isolated (inductor-inductor-capacitor) LLC power converter circuit. The circuit comprising an isolated transformer, and a first switch operable as a synchronous rectifier on a secondary side of the transformer. The controller comprises a current determination module configured to determine a primary winding current on a primary side of the isolated transformer; and a processing module configured to use the determined primary winding current in a processing algorithm to output a first control signal to configure the first switch on the secondary side of the isolated transformer to determine a waveform of a secondary winding current of the isolated transformer.

IPC Classes  ?

  • H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
  • H02M 1/00 - Details of apparatus for conversion
  • H02M 3/00 - Conversion of DC power input into DC power output

76.

VALVE SYSTEM

      
Application Number 18228601
Status Pending
Filing Date 2023-07-31
First Publication Date 2025-02-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Coretto, August M.
  • Marocchini, Francis P.
  • Susca, Ryan Prescott

Abstract

A system can include a first controllable valve configured to output a first control pressure on one or more first pressure control lines, a second controllable valve configured to output a second control pressure on one or more second pressure control lines, and a valve assembly. The valve assembly can be configured to direct the first control pressure to a first functional system and the second control pressure to a second functional system in a first state, direct the first control pressure to both of the first functional system and the second functional system in a second state, and direct the second control pressure to both of the first functional system and the second functional system in a third state.

IPC Classes  ?

  • F15B 13/044 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors

77.

FUEL CELL START-UP ARCHITECTURE

      
Application Number 18775248
Status Pending
Filing Date 2024-07-17
First Publication Date 2025-02-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor Kruczek, Grzegorz

Abstract

A start-up architecture for a fuel cell includes a fuel cell having a hydrogen input and an oxygen source input and a hydrogen output for outputting residual hydrogen not used in the fuel cell reaction. The hydrogen output is connected to the hydrogen input via a mixer in a hydrogen loop. The architecture also includes a bypass loop, bypassing the mixer, between the hydrogen output and the hydrogen input and a control valve (CV1) in the bypass loop between the hydrogen output and the hydrogen input. A hydrogen start-up stored energy source is connected to the hydrogen input via a hydrogen start-up line and an oxygen source start-up stored energy source is connected to the oxygen source input via an oxygen source start-up line. During a fuel cell start up process, the architecture is configured to provide hydrogen and oxygen to the startup lines.

IPC Classes  ?

  • H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
  • H01M 8/04014 - Heat exchange using gaseous fluidsHeat exchange by combustion of reactants
  • H01M 8/04082 - Arrangements for control of reactant parameters, e.g. pressure or concentration
  • H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
  • H01M 8/04746 - PressureFlow

78.

VALVE SYSTEMS

      
Application Number 18228608
Status Pending
Filing Date 2023-07-31
First Publication Date 2025-02-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Susca, Ryan Prescott
  • Marocchini, Francis P.
  • Coretto, August M.

Abstract

A system can include a first controllable valve, a second controllable valve, a transfer valve, and a transfer control system. The first controllable valve can be configured to output a control pressure on one or more first pressure control lines. The second controllable valve can be configured to output a control pressure on one or more second pressure control lines. The transfer valve can be in fluid communication with the first controllable valve and the second controllable valve. The transfer valve can be configured to move between a first position, a second position, and a third position.

IPC Classes  ?

  • G05D 16/20 - Control of fluid pressure characterised by the use of electric means
  • F15B 13/044 - Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors

79.

HYBRID AIRFOIL BEARING WITH ACTIVE DAMPING

      
Application Number 18362669
Status Pending
Filing Date 2023-07-31
First Publication Date 2025-02-06
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Kilchyk, Viktor
  • Merritt, Brent J.

Abstract

A hybrid bearing assembly is provided and includes stationary components, a shaft disposed to rotate relative to the stationary components, passive magnetic bearing components integrated into the shaft and the stationary components to generate passive magnetic force to resist radial movement of the shaft relative to the stationary components and an active damping system. The active damping system includes a stationary coil, a magnetic element rotatable with the shaft to induce current in the stationary coil and a circuit electrically coupled with the stationary coil. The circuit is configured to determine from the current an attitude change of the shaft and the magnetic element and to apply damping current to the stationary coil to resist the attitude change.

IPC Classes  ?

  • F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
  • H02K 7/09 - Structural association with bearings with magnetic bearings

80.

RECEPTACLE AND SYSTEMS FOR HUMAN WASTE COLLECTION AND CONTAINMENT

      
Application Number 18363992
Status Pending
Filing Date 2023-08-02
First Publication Date 2025-02-06
Owner HAMILTON SUNDSTRAND CORPORATION (USA)
Inventor
  • Luker, Kelly
  • Radawiec, Rochelle

Abstract

Waste management systems and capture funnels thereof are described. The waste management systems include a waste container, a reclamation system, a capture funnel, and a hose fluidly connecting the capture funnel to each of the waste container and the reclamation system. The capture funnels include a funnel having an inlet end and an outlet end, wherein the inlet end has a non-circular shape, a skirt arranged at the inlet end, and a capture insert installed within the funnel.

IPC Classes  ?

  • A61F 5/451 - Genital receptacles
  • A61F 5/44 - Devices worn by the patient for reception of urine, faeces, catamenial or other dischargeColostomy devices

81.

Strain wave gear differential with high gear reduction

      
Application Number 18390332
Grant Number 12215770
Status In Force
Filing Date 2023-12-20
First Publication Date 2025-02-04
Grant Date 2025-02-04
Owner HAMILTON SUNDSTRAND CORPORATION (USA)
Inventor
  • Balsiger, Derick S.
  • Bloxham, Keith A.

Abstract

A harmonic drive, having: a ground ring; a first flex spline extending axially from the ground ring; a first input shaft that is radially exterior to the first flex spline, the first input shaft includes a first wave generator that engages the first flex spline; a second flex spline, radially within the first flex spline and rotationally coupled to the first flex spline, a second input shaft that is radially within the second flex spline, the second input shaft includes a second wave generator that engages the second flex spline; an output shaft coupled to the second flex spline, the first flex spline includes a first spline that faces radially inward; the second flex spline includes a second spline that faces radially outward; a circular gear having a third spline that face outwardly and engages the first spline; a fourth spline that faces radially inward and engages the second spline.

IPC Classes  ?

  • F16H 49/00 - Other gearing
  • F16H 35/00 - Gearings or mechanisms with other special functional features

82.

METAL PLATING RETENTION ON ADDITIVELY MANUFACTURE PLASTIC PARTS FOR AN AIRCRAFT

      
Application Number 18357557
Status Pending
Filing Date 2023-07-24
First Publication Date 2025-01-30
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Merritt, Brent J.
  • Kilchyk, Viktor

Abstract

A method of additively manufacturing an aircraft part, having steps of: forming a base, defining a shape of the aircraft part, out of first thermoplastic polymer; forming a lower support surface onto discrete locations of the base by printing a mixture of a second thermoplastic polymer and a catalyst compound formed with metal onto the discrete locations, such that the lower support surface is formed with cavities; and forming an upper support surface by depositing, via electrolysis deposition, a metal plating onto the lower support surface along the discrete locations, to thereby form the aircraft part.

IPC Classes  ?

  • B64F 5/10 - Manufacturing or assembling aircraft, e.g. jigs therefor
  • B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
  • C25D 9/04 - Electrolytic coating other than with metals with inorganic materials

83.

METAL PLATED ADDITIVELY MANUFACTURED PLASTIC ACM ROTORS WITH INTERNAL THERMALLY ADAPTIVE STRUCTURE

      
Application Number 18357571
Status Pending
Filing Date 2023-07-24
First Publication Date 2025-01-30
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Merritt, Brent J.
  • Kilchyk, Viktor

Abstract

A method of forming a rotor for an ACM, having steps of forming a base having: a first section adjacent to an ACM diffuser shroud when installed; a second section forming a seal disposed against an ACM aft frame member when installed; a third section connected to an ACM compressor rotor shaft when installed; a fourth section connected to an ACM tie rod when installed; a fifth section between the second and fourth sections, forming the base includes: printing thermoplastic polymer surfaces from thermoplastic polymers disposed against each other, the thermoplastic polymer surfaces having different CTEs; forming a lower support section on the base by printing along the discrete sections a mixture of a third thermoplastic polymer and a catalyst formed with metal; and forming an upper support section on the rotor by depositing on the lower support section along the discrete sections, via electrolysis deposition, a metallic coating.

IPC Classes  ?

  • B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 80/00 - Products made by additive manufacturing

84.

METAL PLATED ADDITIVELY MANUFACTURED PLASTIC ACM HOUSINGS WITH INTERNAL THERMALLY ADAPTIVE STRUCTURE

      
Application Number 18357604
Status Pending
Filing Date 2023-07-24
First Publication Date 2025-01-30
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Merritt, Brent J.
  • Kilchyk, Viktor

Abstract

A method of forming a housing for an ACM, having steps of: forming a base: a first section adjacent to a seal of an ACM compressor rotor when installed; a second section that is fixed to an ACM forward frame member when installed; a third section adjacent to a bearing and sleeve disposed around an ACM compressor rotor shaft when installed, forming the base includes: printing thermoplastic polymer surfaces from thermoplastic polymers that are disposed against each other, the thermoplastic polymer surface having differing CTEs; forming a lower support section on the base by printing, layer by layer, along the plurality of discrete sections of the base a mixture of a third thermoplastic polymer and a catalyst formed with metal; and forming an upper support section on the housing by depositing on the lower support section, along each of the discrete sections, via electrolysis deposition, a metallic coating.

IPC Classes  ?

  • B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
  • B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials

85.

METAL PLATED ADDITIVELY MANUFACTURED PLASTIC ACM SHAFTS WITH INTERNAL THERMALLY ADAPTIVE STRUCTURE

      
Application Number 18357615
Status Pending
Filing Date 2023-07-24
First Publication Date 2025-01-30
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Merritt, Brent J.
  • Kilchyk, Viktor

Abstract

Forming an ACM shaft by: forming a base of (i) a thrust shaft having a first section connecting with an ACM tie rod when installed; a second section connecting with an ACM motor rotor when installed; a third section forming a shaft joint that connects adjacent portions of the thrust shaft; or (ii) a compressor rotor shaft having a fourth section connecting with an ACM tie rod support when installed; and fifth section connecting with the ACM motor rotor when installed; forming the base includes: printing polymer surfaces having differing CTSs from polymers disposed against each other; forming a lower support section on the base by printing along the discrete sections a mixture of a third thermoplastic polymer and a catalyst formed with metal; and forming an upper support section on the shaft by depositing on the lower support section, along the discrete sections, via electrolysis deposition, a metallic coating.

IPC Classes  ?

  • B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
  • B29C 64/124 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
  • B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
  • B33Y 80/00 - Products made by additive manufacturing

86.

METAL PLATED ADDITIVELY MANUFACTURED PLASTIC ACM SHROUDS WITH INTERNAL THERMALLY ADAPTIVE STRUCTURE

      
Application Number 18357585
Status Pending
Filing Date 2023-07-24
First Publication Date 2025-01-30
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Merritt, Brent J.
  • Kilchyk, Viktor

Abstract

Forming a shroud for an ACM by: forming a base having discrete sections including: a first section defining connecting features for connecting with a fixed ACM structure; a second section positioned adjacent to a compressor rotor when installed in the ACM; and a third section disposed adjacent to a drive ring bearing when installed in the ACM; forming the base includes: printing thermoplastic polymer surfaces, respectively from thermoplastic polymers, disposed against each other, a first thermoplastic polymer surface having a CTE, and a second thermoplastic polymer surface having a second CTE; forming a lower support section on the base by printing along the discrete sections of the base a mixture of a third thermoplastic polymer and a catalyst formed with metal; and forming an upper support section on the shroud by depositing on the lower support section, along each of the discrete sections, via electrolysis deposition, a metallic coating.

IPC Classes  ?

  • B29C 64/30 - Auxiliary operations or equipment
  • B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
  • B33Y 80/00 - Products made by additive manufacturing
  • B64C 27/32 - Rotors
  • C25D 7/00 - Electroplating characterised by the article coated

87.

METAL PLATED ADDITIVELY MANUFACTURED PLASTIC ACM SEAL PLATES WITH INTERNAL THERMALLY ADAPTIVE STRUCTURE

      
Application Number 18357597
Status Pending
Filing Date 2023-07-24
First Publication Date 2025-01-30
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Merritt, Brent J.
  • Kilchyk, Viktor

Abstract

A method of forming a seal plate for an ACM, having steps of: forming a base having a first section exposed to flow from an ACM first stage turbine inlet when installed; a second section secured to an ACM compressor shroud; a third section secured to a first stage nozzle and ACM shroud when installed; a fourth section that is adjacent to a rotor blade of the ACM compressor rotor when installed, forming the base includes: printing thermoplastic polymer surfaces from thermoplastic polymers, that are disposed against each other, the thermoplastic polymer surfaces having differing CTEs; forming a lower support section on the base by printing along the discrete sections a mixture of a third thermoplastic polymer and a catalyst formed with metal; and forming an upper support section on the seal plate by depositing on the lower support section, along the discrete sections, via electrolysis deposition, a metallic coating.

IPC Classes  ?

  • B29C 64/30 - Auxiliary operations or equipment
  • B29C 64/106 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
  • B33Y 80/00 - Products made by additive manufacturing
  • B64D 33/02 - Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
  • C25D 7/00 - Electroplating characterised by the article coated

88.

Hydraulic motoring of engine

      
Application Number 18226163
Grant Number 12209537
Status In Force
Filing Date 2023-07-25
First Publication Date 2025-01-28
Grant Date 2025-01-28
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Briggs, Eric
  • Mastrocola, Naison E.

Abstract

In accordance with at least one aspect of this disclosure, a system includes a fuel line, an electrically driven fuel pump configured to supply fuel to a first fuel line branch and a second fuel line branch, and a selector valve disposed in the fuel line at a juncture of a first fuel line branch and a second fuel line branch configured to communicate the electrically driven fuel pump with the first fuel line branch or the second fuel line branch based on a position of the selector valve. In a first position, the selector valve is configured to fluidly connect the electrically driven fuel pump with the first fuel line branch to supply fuel to a combustor of the engine and drive a high pressure shaft at a first speed. In a second position, the selector valve is configured to fluidly connect the electrically driven fuel pump with the second fuel line branch to drive a hydraulic rotation unit configured to drive the high pressure spool of the engine at a second speed different from the first speed.

IPC Classes  ?

89.

Three pump fuel systems with selectable main and augmentor pumps

      
Application Number 18244531
Grant Number 12209538
Status In Force
Filing Date 2023-09-11
First Publication Date 2025-01-28
Grant Date 2025-01-28
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Susca, Ryan Prescott
  • Shook, Ryan
  • Kopp, James C.
  • Selstad, Tyler J.

Abstract

A fuel system includes a main fuel pump sub-system (MFP) with an inlet for receiving a supply of fuel from an inlet line. The MFP has a main outlet line configured to supply fuel to a main fuel throttle valve assembly (MFTV), and a cross-over outlet line. An augmentor fuel pump sub-system (ABFP) has an inlet connected in fluid communication with the cross-over outlet line, and an outlet connected in fluid communication with a main augmentor supply line. A actuation fuel pump sub-system (AFP) has an inlet connected in fluid communication with a branch of the main outlet line, an outlet line with a first outlet line branch configured to connect to supply fuel to the MFTV, and a second outlet line branch configured to connect to supply fuel to an actuation system.

IPC Classes  ?

  • F02C 7/22 - Fuel supply systems
  • F02C 7/232 - Fuel valvesDraining valves or systems
  • F02C 7/236 - Fuel delivery systems comprising two or more pumps
  • F02M 59/42 - Pumps characterised by adaptations to special uses or conditions for starting of engines

90.

Dedicated thermal recirculation control

      
Application Number 18224718
Grant Number 12241418
Status In Force
Filing Date 2023-07-21
First Publication Date 2025-01-23
Grant Date 2025-03-04
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Shook, Ryan
  • Susca, Ryan Prescott

Abstract

A system includes a main supply line and a thermal recirculation pump in fluid communication with the main supply line for supplying the thermal recirculation pump. The thermal recirculation pump is connected in fluid communication with a thermal recirculation line for providing fluid at an elevated pressure to the thermal recirculation line relative to the main supply line. A thermal recirculation control is connected in fluid communication to be supplied from the thermal recirculation line. A cooler system of one or more coolers is connected in fluid communication with a cooler supply line of the thermal recirculation control.

IPC Classes  ?

  • F02C 7/224 - Heating fuel before feeding to the burner
  • F02C 7/236 - Fuel delivery systems comprising two or more pumps
  • F02C 9/26 - Control of fuel supply
  • F02C 9/30 - Control of fuel supply characterised by variable fuel pump output
  • F02C 7/14 - Cooling of plants of fluids in the plant

91.

PISTON RING

      
Application Number 18910903
Status Pending
Filing Date 2024-10-09
First Publication Date 2025-01-23
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Jarman, Jecee
  • Leduc, Zachary
  • Holowczak, John

Abstract

In accordance with at least one aspect of this disclosure, a pump system for an aircraft includes, a cylinder barrel configured to rotate within a pump housing of a pump, and a plurality of pistons seated within a respective bore defined in the cylinder barrel. Each piston further includes a piston ring disposed at an end thereof configured to form a hydrodynamic seal with an inner surface of the respective bore. Each respective piston ring is of silicon nitride. In embodiments, the piston ring can include a chamfer on at least a leading edge of the piston ring. In embodiments, the piston ring can include a cut therethrough configured to allow for thermal expansion of the piston ring.

IPC Classes  ?

  • F16J 9/28 - Piston-rings, seats thereforRing sealings of similar construction in general characterised by the use of particular materials of non-metals
  • B64D 37/00 - Arrangements in connection with fuel supply for power plant
  • F04B 1/2035 - Cylinder barrels

92.

COMBINED HIGH PRESSURE RELIEF AND BYPASS VALVES

      
Application Number 18225102
Status Pending
Filing Date 2023-07-21
First Publication Date 2025-01-23
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Coretto, August M.
  • Susca, Ryan Prescott

Abstract

A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. The system includes a relief valve (RV) having a control pressure port and an RV inlet port in fluid communication with the outlet line and an RV outlet in fluid communication with a bypass line. The system includes an actuator operatively connected to the control pressure port of the RV to change function of the RV between a first function and a second function. The first function is a high pressure relief valve function and the second function is as a wind milling bypass function.

IPC Classes  ?

93.

THRUST RING FRICTIONAL DAMPER

      
Application Number 18353467
Status Pending
Filing Date 2023-07-17
First Publication Date 2025-01-23
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Roberts, Ethan
  • Cooling, Aaron

Abstract

A system includes a rotor shaft rotatable about an axis, a disconnect shaft nested at least partially within an interior of the rotor shaft, and a journal shaft selectively rotatably coupled to the disconnect shaft. A vibration damping mechanism is arranged between the rotor shaft and the journal shaft. The vibration damping mechanism includes a thrust journal bearing affixed to the rotor shaft and a thrust washer mounted to the journal shaft. A biasing mechanism is operably coupled to disconnect shaft to bias the thrust washer into frictional engagement with the thrust journal bearing.

IPC Classes  ?

  • F16D 7/04 - Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type

94.

ENVIRONMENTAL CONTROL SYSTEM WITH ADAPTIVE TURBINE ARRANGEMENT

      
Application Number 18356399
Status Pending
Filing Date 2023-07-21
First Publication Date 2025-01-23
Owner Hamilton Sundstrand Corporation (USA)
Inventor Vignali, Mark G.

Abstract

A method of operating an environmental control system pack of a vehicle includes providing a thermodynamic device including a compressor and a plurality of turbines including a first turbine and a second turbine mounted to a shaft and a plurality of valves fluidly coupled to the thermodynamic device, operating at least one of the plurality of valves to supply a medium to the first turbine and the second turbine in series during a mode of operation, and operating at least one of the plurality of valves to supply a first portion of the medium to the first turbine and to supply a second portion of the medium to the second turbine independently from the first portion of the medium in location another mode of operation.

IPC Classes  ?

  • B64D 13/08 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled
  • F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
  • F25B 9/06 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
  • F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves

95.

NUT DESIGN FOR ACTUATOR SYSTEM

      
Application Number 18496422
Status Pending
Filing Date 2023-10-27
First Publication Date 2025-01-16
Owner Hamilton Sundstrand Corporation (USA)
Inventor Tripathi, Amit Kumar

Abstract

A nut for use in an actuator assembly having a rotatable screw includes an outer nut portion and an inner nut portion removably coupled to the outer nut portion. The inner nut portion is rotatably couplable to the rotatable screw. At least one anti-rotation pin is positionable between the outer nut portion and the inner nut portion to restrict rotation of the inner nut portion relative to the outer nut portion.

IPC Classes  ?

  • F16B 33/00 - Features common to bolt and nut
  • F16B 39/16 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut

96.

DC-TO-DC CONVERTER AND CONFIGURABLE OUTPUT MAGNITUDE AND POLARITY

      
Application Number 18627644
Status Pending
Filing Date 2024-04-05
First Publication Date 2025-01-16
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Alladi, Pranay Kumar
  • Lingannagari, Shivani

Abstract

A DC-to-DC converter includes an input configured to receive a DC input voltage, an output having a positive rail and a negative rail, wherein the negative rail is configured for connection to a negative terminal of the DC input voltage source, a bypass capacitor having first end connected to a first node and a second end connected to a second node and two coupled inductors, the two coupled inductors including a first inductor that has a first end connected to the input and a second end connected to the first end of the bypass capacitor at the first node, the two coupled inductors also including a second inductor that has a first end connected to the second end of the bypass capacitor at the second node and a second end connected to a third node. The converter includes switches that allow control of the polarity and magnitude of the output.

IPC Classes  ?

  • H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
  • H02M 3/00 - Conversion of DC power input into DC power output

97.

ELECTRICAL LOAD CONTROL MONITORING UNITS (LCMUs)

      
Application Number 18219888
Status Pending
Filing Date 2023-07-10
First Publication Date 2025-01-16
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Belisle, Francis C.
  • Swenson, Joshua C.
  • Cooney, Robert C.
  • Yang, Nhia
  • Barker, Matthew A.
  • Morman, Darin R.
  • Wavering, Jeffrey T.
  • Seger, Mark

Abstract

A method of power switching includes receiving a command from an external aircraft controller to power an aircraft load from an aircraft voltage bus. The method includes in response to the command from the external aircraft controller, controlling a relay to connect or disconnect an aircraft voltage bus from an aircraft load. Controlling the relay includes current monitoring the relay and voltage monitoring the relay power switching. The method can include receiving temperature feedback indicative of temperature of the relay, and using the temperature feedback for at least one of controlling the relay and/or prognostic and health monitoring. The method can include outputting feedback to the external aircraft controller relating to status, operation, and health of the relay.

IPC Classes  ?

  • H02J 1/10 - Parallel operation of dc sources
  • H02J 1/14 - Balancing the load in a network

98.

FAIL OPEN DETECTION

      
Application Number 18219908
Status Pending
Filing Date 2023-07-10
First Publication Date 2025-01-16
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Gomes, Alex
  • Swenson, Joshua C.

Abstract

A system includes a solid state power controller (SSPC) including a plurality of switching devices connected in parallel. A gate driver is operatively connected to control the plurality switching devices together so all of the switching devices in the plurality of switching devices either close to pass current through the SSPC, or open to prevent current passing through the SSPC in a normal operation mode. A fail open test circuit is operatively connected to individually control a respective gate of each of the switching devices in the plurality of switching devices for testing the plurality of switching devices individually for a fail OPEN condition.

IPC Classes  ?

  • G01R 31/327 - Testing of circuit interrupters, switches or circuit-breakers
  • H03K 17/18 - Modifications for indicating state of switch

99.

THERMAL MANAGEMENT SYSTEMS FOR RECTIFIER ASSEMBLIES

      
Application Number 18220676
Status Pending
Filing Date 2023-07-11
First Publication Date 2025-01-16
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Joshi, Ashutosh
  • Carter, Eric A.
  • Saxby, Coralyn J.
  • Pal, Debabrata

Abstract

In accordance with at least one aspect of this disclosure, a rectifier assembly includes, at least, a first diode disposed between a first bus bar and a second bus bar. The rectifier assembly further includes, a first thermal management structure and a second thermal management structure. The first thermal management structure is configured to electrically connect the first bus bar to the first diode and be in thermal communication between the first bus bar and a first side of the first diode to transfer heat between the first bus bar and the first diode. The first thermal management structure is configured to transfer heat between the first bus bar and the first thermal management structure. The first thermal management structure is also configured to allow a fluid to flow therethrough to transfer heat from the first thermal management structure to the fluid flowing therethrough.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
  • H02G 5/10 - Cooling
  • H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output

100.

SYSTEMS AND METHODS FOR COOLING MOTORS

      
Application Number 18220698
Status Pending
Filing Date 2023-07-11
First Publication Date 2025-01-16
Owner Hamilton Sundstrand Corporation (USA)
Inventor
  • Pal, Debabrata
  • Kilchyk, Viktor

Abstract

In accordance with at least one aspect of this disclosure, a system includes an airflow line, a main compressor disposed in the airflow line configured to receive a ram air flow and supply a compressed air flow to the air flow line, and a motor operatively connected to drive the main compressor. An air cycle machine is disposed in the airflow line downstream of the main compressor configured to receive the compressed airflow and supply a cooled cabin airflow to an aircraft cabin. A cooling line tap disposed in the airflow line downstream of the air cycle machine configured to communicate a flow of cooling air to the motor from the airflow line to supply a portion of the cooled cabin airflow to one or more portions of the motor as motor cooling air via a first cooling airflow line.

IPC Classes  ?

  • H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
  • B64D 13/08 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled
  • H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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